Vi is a text editor originally created for Unix-based systems and is widely used in Linux environments. It is a powerful, lightweight, and versatile editor that operates directly within a terminal window. Vi is known for its efficiency and keyboard-based editing commands, making it popular among system administrators, …

Headings 1# Heading 1 2## Heading 2 3### Heading 3 4#### Heading 4 5##### Heading 5 Heading 1 Heading 2 Heading 3 Heading 4 Heading 5 Text styles 1# Bold 2The quick brown fox jumps over the lazy dog. 3__The quick brown fox jumps over the lazy dog.__ 4# Italic 5The quick brown fox jumps over the lazy dog. 6_The …

Mysql MySQL Locations Mac /usr/local/mysql/bin Windows /Program Files/MySQL/MySQL version/bin Xampp /xampp/mysql/bin Add mysql to your PATH 1# Current Session 2export PATH=${PATH}:/usr/local/mysql/bin 3# Permanantly 4echo 'export PATH="/usr/local/mysql/bin:$PATH"' >> ~/.bash_profile Login 1mysql …

SSH provides a mechanism for establishing a cryptographically secured connection between two parties, authenticating each side to the other, and passing commands and output back and forth. SSH using numbers of encryption techniques. Symmetric Encryption Asymmetric Encryption Hashes Symmetric Encryption Symmetrical …

Htaccess (HyperText Access) is a configuration file that allows developers to overide the Apache webserver configuration at directory level. Enable .htaccess By default .htaccess is not enable, we have to change in httpd.conf (Apache) configuration file to for enable .htaccess Replace AllowOverride None to …

A Dockerfile is a text document used to create own docker container. A Dockerfile has some commands FROM: Sets the Base Image for subsequent instructions. MAINTAINER: (deprecated - use LABEL instead) Set the Author field of the generated images. RUN: execute any commands in a new layer on top of the current image and …

Git configuration 1git config --global user.name "Your Name" 2git config --global user.email "you@example.com" 3git config --global color.ui auto STAGE 1git status 2git add [file] 3git reset [file] 4git diff 5git diff --staged 6git commit -m “[descriptive message]”

The Internet Protocol (IP) is the method or protocol by which data is sent from one computer to another on the Internet. Each computer (known as a host) on the Internet has at least one IP address that uniquely identifies it from all other computers on the Internet. Types of IP The two most common versions of IP in use …

JSON (JavaScript Object Notation) is a standard file format that uses text to communicate data objects to array data types. This notation makes it easy for applications to parse and generate files. JSON grew out of the need to have a real-time server-to-web browser communication. Datatypes String Number Boolean null …

Kubernetes (K8s in short) is an open-source container orchestration platform introduced by Google in 2014. It is a successor of Borg, Google’s in-house orchestration system that accumulated over a decade of the tech giant’s experience of running large enterprise workloads in production. In 2014, Google decided to …